Perhaps you should try some spelling variations:
"thieu thi luan van kinh doanh" » "thieu nhi luan van kinh doanh", "trieu thi luan van kinh doanh", "thieu tai luan van kinh doanh", "thieu thi luan va kinh doanh", "thieu thi luan van minh doanh", "thieu thi luan van dinh doanh", "thieu thi xuan van kinh doanh", "thieu thi loan van kinh doanh", "thieu thi thuan van kinh doanh"
"trien thi lan van kinh doanh" » "trieu thi lan van kinh doanh", "tren thi lan van kinh doanh", "trien chi lan van kinh doanh", "trien thi lan va kinh doanh", "trien thi lan van minh doanh", "trien thi lan van dinh doanh", "trien thi hanh van kinh doanh", "trien thi nang van kinh doanh", "trien thi lien van kinh doanh", "trien thi lang van kinh doanh", "trien thi tan van kinh doanh", "trien thi san van kinh doanh"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (("trien thi lan van kinh doanh") or ("thieu thi luan van kinh doanh"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (("trien thi lan van kinh doanh") OR ("thieu thi luan van kinh doanh")).
• Removing quotes may allow a broader search: (( trien thi lan van kinh doanh ) or ( thieu thi luan van kinh doanh )).
• Adding a wildcard symbol may retrieve word variants: (("trien thi lan van kinh doanh") or ("thieu thi luan van kinh doanh"))*.